The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1989
Filed:
Apr. 13, 1987
Kazutaka Suefuji, Shimizu, JP;
Aizo Kaneda, Yokohama, JP;
Yasuyuki Kanai, Shimizu, JP;
Shozo Nakamura, Yokohama, JP;
Tetsuya Arata, Shimizu, JP;
Katsuaki Kikuchi, Tsuchiura, JP;
Takao Senshu, Shizuoka, JP;
Kimiaki Nakakado, Shimizu, JP;
Eiji Maeda, Shimizu, JP;
Sadatsohi Minakawa, Shimizu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A compressor has stationary and orbiting scroll members formed thereon with spiral wraps engaged with each other to define compression chambers which, when the orbiting scroll member is moved relative to the stationary scroll member, are radially inwardly moved while decreasing their volumes. Each scroll member is composed of a metallic base scroll member having a spiral wrap formed on one side and a coating layer of a resin compound formed on the said side of the scroll member, including the surfaces of the wrap. The coating layer is molded by placing the base scroll member in a mold cavity with a space left between the said side of the base scroll member and a mold part and by injecting the resin compound into the space.